1. Patrick was humble about his success,

sayting that he would never have made it so far if not for the opportunities afforded him.

가정법구문인데 afforded부분이 이해가 안갑니다..

4형식으로 쓰였으면 afforded to him 이라고 되야하지않나요? 직접목적어저니깐

2. he did not his secular cantata. To do so would have been customary in bach's time in this type of work.

이부분에서 To do so 가 주어로 쓰인건가요? 그러면 Doing so로 하는게 더 자연스럽고 맞지 않나요?

또 뒤에 원래 in bach's time in this type of work 이렇게 in 을 2번사용해도 크게 문제없는건가요?